technique-router

technique-router — ZFC-Compliant PR Type Classification Skill

Purpose

Classifies a GitHub issue/PR description into a PR-type category, then recommends the appropriate autor technique. This is classification-only until routing is wired: classifyPrType() returns PR-type metadata, but technique resolution still happens separately through prompt/config defaults. All classification is delegated to the model API — no heuristic scoring, keyword matching, or hardcoded routing tables.

PR Types

Type	Description
state-bool	Widening boolean semantics (int 1/0, string '1'/'0' as valid True/False)
data-norm	Normalizing key names and numeric formats (xp→xp_gained, NaN handling)
ci-workflow	GitHub Actions workflow changes (YAML scripting, gate logic)
typeddict-schema	TypedDict + validation for previously untyped data structures
large-arch-refactor	Module extraction, moving functions between files
unknown	Cannot determine from the description

Technique Selection (Autor Research — Phase 10)

All 9 autor techniques converge within rubric noise (~80-85 confidence-interval overlap). SR-prtype is the safe default for all PR types. No per-type routing is statistically justified.

Technique	Description	When to use
SR-prtype	Self-Refine with PR-type classification	Safe default for all types
SR-fewshot	Self-Refine with single prior PR exemplar	When a highly similar prior PR exists
SR	Basic 3-round self-refine	Fallback
ET	Extended chain-of-thought reasoning	Complex architectural decisions
PRM	Process Reward Model (score each step)	Debugging, multi-step reasoning

Usage

/technique-router <issue-title> <issue-body-or-url>

ZFC Compliance

This skill does NOT:

• Match keywords like "fix", "bug", "refactor" to determine type
• Use regex or substring checks for intent detection
• Apply hardcoded scoring weights
• Use if/else chains that guess intent from text

This skill DOES:

• Pass the issue text to the model with a clear classification prompt
• Return the model's classification as the decision
• Let the caller decide what to do based on the classification

Integration

Used by packages/core/src/decomposer.ts's classifyPrType() function in the AO core library. That function classifies PR type only; it does not yet select or apply a technique directly.